How can I fix a leak ?

I recently replaced my dryer belt as it had snapped put all the dryer back together and now it is leeking water from underneath, the water isn't coming up the pipes into the tray that's meant to collect it, I have removed the pump which was full of water cleaned it all out put it all back together and it's still leaking does anyone have any suggestions on what else it could be
Thanks in advance

Kat
May 2015